Patents by Inventor Toichi Ishikawa

Toichi Ishikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Medical liquid injector for continuous transfusion
    Patent number: 5178609
    Abstract: A medical liquid injector for continuous transfusion includes a syringe fitted with a piston having a detachable shaft rod, and a cap that can be connected to a proximal end portion of the syringe. The cap has an elastic pressing device for continuously pressing the piston from which the shaft rod is removed to a position where all the amount of medical liquid is pushed out after the medical liquid has been sucked into the syringe.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: January 12, 1993
    Assignee: Kato Hatsujo Kaisha, Ltd.
    Inventor: Toichi Ishikawa
  • Winged needle
    Patent number: 5147319
    Abstract: A winged needle with which the needle can be safely exposed and covered. The winged needle comprises a base into which the needle is rooted, wings which can be folded to cover the needle, sheath-portion of the wings which surrounds the needle on all sides when the wings are folded, and a coupling device which couples the wings. This structure enables a user to handle the winged needle from the base side without having his hand face the needle tip, significantly reducing the possibility of puncturing the user's hands.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: September 15, 1992
    Assignee: Kato Hatsujo Kaisha, Ltd.
    Inventors: Toichi Ishikawa, Hiroyuki Asano